Dust-collector



Patented Nov. I5, |898.

(Application ed Feb. 23, 1898.)

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No. 6|4,2|0. Patented Nov. I5, |898. 0. M. MDRSE. DUST (OLLECTDR.

(Application led Feb. 23, 1898.)

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No. 6|4,2|o. Patented Nov. l5, |393.

0. M. Monss.

DUST COLLECTOR.

(Application filed Fb. 23, 1898.) (No Model.)

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' which it is discharged by a conveyer or other l sections and the still-air chamber.

NITED STATES,

PATENT OFFICE.

ORVILLE M. MORSE, OF JACKSON, MICHIGAN.

ousT-coLl- EcToa SPECIFICATION forming part of Letters Patent No; 614,210, dated November 1 5, 1898.

' Application nea February 23,1898. seri-a1 No. 671,234. (No man.)

To a/ZZ whom, t may concorre.'

Be it known .that I, ORVILLE M. MORSE, a 'citizen of the United States, residing at Jackson, in the county of Jackson and State of Michigan, have invented a new and useful Improvement inDust-Collectors, of which the following is a specification.

This invention relates to that classV of dustcollectors which consist of a rotatory stellated balloon composed of filtering compartments or sections, a still-air chamber, and a knocking or jarring device by which the compartments or sections which have arrived over the still-air chamber are jarred for dislodging the dust from the filter-cloth and causing it to drop into the still-air chamber, from suitable means. l

The objects of my invention are to improve the construction of the. compartments or sections with a view of perfecting the jarring or .cleaning action, so that all parts of the ltercloth are thoroughly cleaned and maintained in good working condition, to so construct the sections or compartments that each can be readily removed from the rotatory supporting-frame when necessary-for replacing the filter-cloth or other purposes, and to im-A prove the construction of the machine in other respects.

In the accompanying drawings, consisting of three sheets, Figure 1 is a longitudinal sectional elevation of my improved dust-collector. Fig. 2 is an end elevation, partly in section. Fig. 3 is a longitudinal vertical section, on an enlarged scale, through one end of the still-air chamber .and adjacent parts. Fig. 4 is a vertical section, at/right angles to Fig. 3, in line 4 4, Fig. 3. Fig. 5 is a vertical section in line 5 5, Fig. 3, looking outwardly. Fig. Gis a fragmentary longitudinal section showing the knocker-shaft and its driving-gear. Figs. 7 and 8 are side elevations of the two knockers. Fig. 9 `is a top plan view of the same. Fig. 10 is an outside plan view of several of the iiltering-sections o n an enlarged scale. Fig. 11 is an inside plan view thereof. Fig. 12 is a longitudinal radial section of one of the filtering-sections. Fig. 13 is a cross-section of several of the Fig. 14 is a detached view of one of the end boards of one of the short sections. Fig. l5 is a del tached view of one of the end boards of one of the lon-g sections. Fig. 16 is a longitudinal s'ectional elevation; on Ya reduced scale, showing a device for connecting the strainerbar ofeach section with the inner portion thereof.

Like letters of reference refer to like parts in the several iigures. l

The stellated balloon consists of filtering compartments or sections A and A', Figs. 1 to 6, which are arranged radially about a common center and secured at both ends to annular supporting-frames B by bolts b, Fig. 12, or other suitable means. In order to increase the number of sections in a balloon of a certain diameter, the sections are alternately long and short in the radial direction, the long sections A extending from the inner to the outer circles of the supporting-frames B and the short sections A being arranged between the long sections and extending from the outer circle inwardly as far as possible. The compartments are closed at their peripheral ends and open at their inner ends, so as to receive the dust-laden air and discharge the accumulated dust at their inner ends. Each section contains -a rigid frame composed of end boards c and longitudinal bars c', arranged parallel with the axis of the balloon and connecting the end boards near the inner ends thereof.

D represents the filter-cloth of each section, which has the form of a flat bag open at its inner end. The openend of the cloth is secured to the rigid section-frame by wooden strips or bars d, which are fastened against the inner faces of the frame-bars c' by screws cl. The longitudinal edges of the filter-cloth are turned outward and laid against the inner faces of the frame-bars c and are clamped against the same by the strips d. The end portions of the cloth are drawn tightly into converging spaces formed at the ends of each section between an outwardly-tapering cleat e and the adjacent end board c. These cleats are secured with their inner large ends to the inner sides of the end boards c. Each of the cloth-fastening strips d is provided on its inner face with a projecting longitudinal packing-strip f, formed of a frayed cotton wick or other suitable material and secured in a groove formed in the strip. The cloth-fastening strips (Z2 of the short sections A are not provided with such projecting packing-strips, but with fiat packings f', Fig. 13, by which they hear tightly against the backs of the frame-bars c' of the long sections, so as to form practically dust-proof joints between the short and long sections. The cloth-fastening strips oZ of each section may be braced by interposed blocks a3.

Each filter-cloth is stretched by the following devices: G represents a wooden strainerbar which is arranged lengthwise within the closed outer end of the filter-bag, and l-I is a wooden spring which is arranged lengthwise at a short distance beyond the outer end of the bag. This spring rests with its ends in recesses e, formed in the outer ends of the end boards c of the section-frame and is connected with the internal strainer-bar G by radial bolts g and an interposed abutment-piece g', Fig. 12. The latter is arranged'midway between the ends of the springs and between the latter and the strainer-bar and is secured to both by a screw g2 or other suitable means. The connecting-bolts g are arranged on both sides ot' the abutment g and at a'suitable distance therefrom to cause the spring to be strained on each side of the abutment. This enables the tension of the spring to be regulated and transmits the vibrations of the jarring-spring Il to the strainer-bar and by the latter to the cloth from end to end. The spring is preferably tapered on both sides at each end, so that it can be reversed if it should take a set by long-continued use. The inner portion of the strainer-bar is preferably reduced in thickness, as shown in Fig. 13, to alford access for the dust-laden air to the cloth on the greater portion of both sides of the bar.

The annular supporting-frames B of the balloon are preferably connected by longitudinal rods z', which are for convenience arranged in the spaces between the inner ends of some of the short sections A and the inner circle of the supporting-frames, as shown in Figs. 1l and 12. This stellated balloon is rotatively mounted in a stationary frame which consists of upright end frames J J', upper longitudinal connecting-bars j, and lower longitudinal connecting-barsj, Figs. l and 2. The end frame J is arranged at the front end of the machine and provided within 'the inner circle of the stellated balloon with an openingjz, to which the spout is connected by which the dust-laden air is supplied tothe dust-collector. j

K represents the still-air chamber, which is arranged longitudinally within the inner circle of the balloon and in the upper portion of said circle and which is attached to the end frames J J. The still-air chamber has the form of a trough and is provided on its longitudinal sides with shields 7c Zt', which extend from the .upper edges of the trough concentric with the balloon, so that the packingstrips f, which project from the inner faces of the long balloon-sections, bear on these shields in passing over the same and form practically tight joints on both sides of the trough, whereby the dust-laden bla-st is prevented from entering the still-air chamber. The latter is preferably connected with the upper horizontal members Z of the end frames J J by vertical ad justing-screws Z', so that it can be adjusted toward and from the inner faces of the sections to insure a tight joint with the same. The screws Zl are attached at their lower ends to frames Z2, which embrace each end of the chamber, and these frames may be secured to the outer sides of the panels Z3 of the end frames J J by screws Z4, which pass through vertical slots in the frames Z2. These panels Z3 are movably fitted into the timbers of the end frames and are provided with fianges Z5, having longitudinally-elongated openings Z, through which pass the screws Z7, by which these panels are secured to the frame-timbers. Each panel has on its rear side a ring m, which is arranged within the inner circle ofthe adjacent annular frame B of the balloon with sufficient clearance to permit of the interposition ot' an annular packing m', which is secured in a groove in the outer side of the ring. A packing m2, of sheepskin or other suitable material, is also secured on the outer side of each annularl balloon-frame B, so as to bear against the rear side of the adjacent panel ot the stationary frame. The upper portion of `each ring is cut away to make room for the stillair chamber, as shown in Fig. 5. The abovedescribed capacity of each panel for horizontal adjustment permits each panel to be nicely adjusted with reference to the adjacent side of the balloon to produce a dust-proof joint between the parts.

N represents the screw conveyer, which is arranged in the still-air chamber and which conveys the dust in the same to the dischargespout n. This conveyer is driven by a pulley n', and motion is transmitted from this conveyer to two shafts n2, which are arranged lengthwise in the lower portion of the stationary frame and geared with the balloon for slowly rotating the same. The transmit.- tin g devices consist of a sprocket-pinion aisecured to the conVeyer-shaft, sprocket-wheels n4, secured to the shafts n2, and a drive-chain n, The shafts n2 are provided with sprocketpinions n, which mesh with annular chains fn7, secured to the outer peripheral faces of the annular frames B of the balloon or with gear-rims.

O O', Figs. l, 2, 6, 7, 8, and 9, represent two knockers, which are arranged side by side above the balloon, so as to strike the compartd ments or sections over the still-air chamber. The knocker O has an inclined lower side, so as to strike the sections as they move upwardly over the shield Zt toward the still-air chamber in the direction of the arrow, Fig. 2. The knocker O' has a substantially horizontal IOI lower side, so'as tostrike' the sections which have arrived over the still-air chamber. These knockers are hung upon a rod p, which is secured in lugs p on the stationary frame and are actuated by a shaft q, which is pro-y vided .with disks Qcarrying two sets of pins yq q2, which engage against the under sides of -the knockers;

Y The'latter are provided with shoulders g3, which allow the-knocker to drop after each-pin has cleared the shoulder. The shaft 'q may be driven by a-chain g4 from thev conveyer-shaft or rby other suitable means By strikingthe sections as theymove over the shield 7c toward the still-air chamber a considerable quantity ofydust is detached from the cloth lbefore the section reaches the still-air chamber. This detached dust drops upon the shield la and is swept by the packing-strips f at the inner ends of the long sections into the 'still-air chamber. yThe cleaning action is in' by the latter to all parts of the clot-h, as the disturbing any other section. the long sections can be removed in 1ike `manl ner by first removing one bar extends from end to end of the bag of lter-cloth. This jarring of the clotlrcleans each cloth thoroughly and completely in,"

passing over the still-airchamber and places the cloth in good condition for again filtering the dust from the air, thereby increasing the efficiency of thecloth and reducing-the cloth area which is required for doing e a Acertain amount of work;

Upon withdrawing the connecting-bolts at x 'the ends of a short compartment or section such compartment can be removed from be tween the annular balloon-frames B without Any one of of the adjacent short sections.- l

The dust-laden air enters the innerspace of ,the balloon, -which is surrounded bythe compartments or sections,and enters the cloth l bags through the open inner ends thereof.

'lhe'purified air escapes through thel meshes of the c1oth,while the dust adheres to the invnerside ofthe bags andis periodically jarred o, so asto dropinto the still-air chamber. If desired, the vibrations 'of the strainerbar may be transmitted to the inner bars c portion of the bar s with both frame-bars c', as shown in Fig. 16. ,i

I claim as my 'invention-- y 1.v A dust-collecting balloon composed of a rotary frame and a circular system of independent filtering-sections which are removably secured thereto andv surround the space. into which the dust-laden air enters and in which the still-air chamber is arranged, each section extending from endvto, end of the bal# loon and comprising a section-frame, a cloth bag secured at its open inner endto said section-frame, a strainer-bar arranged at the .closedo'uter end of said bag, and a jarring-l spring which connects the strainer-bar with the section-frame, substantially as set forth. '2. The combination with 'the annular balloon-frames, ofv independent dust-collecting compartments or sections removablyattached to said frames and each composed of a sectionframe, a cloth bag' secured at its open inner end to said section-frame, a strainer-bar arrangedat the closed outer endlofl said bag,

and a jarring-spring supported with its ends ,on said section-frame and connected with said strainer-bar, substantially as set forth.

3. The combination with the section-frame and the cloth bag secured at its open inner end to said frame, of a strainer-bar arranged atthe closed outer end of said bag, a jarring- 'spring supportedwvith its ends on said sec.

rtion-frame, an abutment arranged between the middle portions of said spring and strainerbar, and bolts connecting said spring and bar on both sides of said abutment, substantially -as set forth.

' 4. The combination with-the annular balloon-frames, of independent alternate long and short radial iltering-sections which are open at their inner ends, the long sec-tions extending farther inward than the short sections and the inner portions of the sections being fitted tightly against each other, sub-r stantially as set forth. i 5; The combination with a balloon having,y ltering-.sections which are provided with jarring-springs at their peripheral ends and an internal still-air chamber, of a knoclz'ery having aninclined lower face and a knocker" having a horizontal lower face, substantially 'of each sectionframe by a longitudinal bar S, connected with tlie'strainer-bar bythe bolts g l and intervening blocks s' 'and an inwardlyj extending bar s2, which connects the middlell as set forth. c v Witness my hand-this 19th day of Februar`y,1`898. I

oRvILLE M. Monsn.4 n j-Witnesses :f z

vJN0. L.. BENTLEY,.

JNO. G. MUNDY. j

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